Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
A036711
a(n)=number of Gaussian integers z=a+bi satisfying |z|<=n+1/2, a>0, b>=0.
0
0, 2, 5, 9, 17, 24, 34, 44, 56, 73, 87, 105, 122, 144, 166, 187, 215, 243, 271, 300, 328, 364, 399, 435, 471, 513, 554, 594, 640, 683, 733, 781, 828, 880, 936, 992, 1049, 1105, 1167, 1226, 1292, 1354, 1420, 1489, 1555, 1627, 1696
OFFSET
0,2
CROSSREFS
Sequence in context: A271318 A119676 A348836 * A080740 A123324 A167887
KEYWORD
nonn
STATUS
approved